Concentrating-table.



G. P. SANDIE.

CONCENTRATING TABLE.

APPLICATION FILED MAR. 27, I9I6.

l 1 9@,295 Patented Aug. 29, 1916.

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FFT@E@ GEORGE PETRIE SANDIE, OF THESSALON, ONTARIO, CANADA.

coNcEnTnArIne-rABLE.

Specification of Letters Patent.

Patented Aug. 29, 1916.

Application filed March 27, 1916. Serial No. 87,135.

To all whom it may concern:

Be it known that I, GEORGE PETRIE SAN- oin, a subject of the King of Great Britain, residing at Thessalon, Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Concentrating-Tables, of which the following is the specification.

The invention relates to improvements in concentrating tables for minerals or the like, as described in the present specification, and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel arrangement and construction of parts whereby a reciprocating table having a plurality of covered corrugated boards and guide strips secured thereon is adapted to receive the disintegrated ore and settle the minerals thereon.

The objects of the invention are to devise means of simple and durable construction whereby all the mineral values as contained in disintegrated ore will be quickly and effectively settled and collected.

Referring to the drawings: Figure 1 is a perspective view of the invention with a few of the covers removed from over the table. Fig. 2 is a cross sectional view of the table. Fig. 3 is a side elevation view showing the means of vibrating said table at the upper end thereof.

Like numerals of reference indicate corresponding parts in each figure. V

In the drawings, 1 is a table frame comprising the short legs 3 at the lower end and the long legs 3 at the upper end, the legs 3 and 3 being joined on each side thereof by the side bars 2, said bars being connected one to the other at' intervals throughout the length thereof by the tie rods 13, in such a manner that the said frame widens in width from the upper to the lower end thereof. 4

1 is the table divided longitudinally into two half sections by the center partition walls 8, the bottom of each section of the table slanting upwardly in a slight incline from the said partition walls 8 to the outer side edge thereof and further widening from the upper end to the lower end in conformity with the frame 1. The table is supported adjacent the four corners thereof by the spring links 5, each link being se cured at the upper end thereof in the blocks 5 on the inner side of the legs 3 and 3 and at the lower end thereof to the extending ends of the cross pieces 5 secured across the under side of the table at the upper and lower ends thereof, said springs being arranged whereby the table may be reciprocated longitudinally, the springs always tending to return the table at the end of each stroke, thereby greatly facilitating the operation of the means employed for such reciprocation as hereinafter fully described.

12 are settling boards arranged laterally on the table 1 beneath each of the tie rods 18, each. board extending from a partition wall 8 to a side edge of the table and grooved longitudinally on the upper surface thereof, that is, from the partition wall to the side edge of the table. Said boards are further substantially wedge-shaped in cross section with the grooved upper side thereof substantially horizontal and further, taper ing to a. point at the outer side edge of the table. The settling boards 12 are held in position by any suitable means such as dowel pins extending upwardly from the bottom of the table and into suitable slots in the under side of the settling boards, whereby said settling boards may be tilted at the rear side thereof and shimmed up to give a corresponding tilt to the upper surface. The settling boards 12 on the upper side thereof are covered by cover plates 12 having the upper edge thereof curled about the tie rods 13 and extending downwardly and curved toward the lower end of the table, and terminating on the lower side of the said settling boards.

The table at each side thereof has a trough 15 extending along the entire length thereof and immediately inside said trough and spaced equally between the settling boards are the fin-shaped baflie strips 14 obliquely set at the outer end thereof and inclined toward the lower end of the table. The table further has the guard strips 14 extending substantially longitudinally on said table at the outer end of each of said settling boards.

It will be understood that any motive power may be connected to the table for agitating the same in a reciprocal manner, such as a counter shaft 17 mounted in suitable bearing brackets between the legs 3 of the table, and having suitable tight and loose pulleys mounted thereon, and the eccentric 16 having an eccentric strap 18 encircling the same, and the eccentric rod 19 extending therefrom, and having the outer end pivotally secured to the under side of the table in the center thereof, whereby upon the rotation of the counter shaft the table is reciprocated a short distance, setting up a quick agitation of the entire table, as hung on the table frame and beneath the cover plates 12*, the weight of said table being checked at each end of the reciprocal stroke by the manner of its spring suspension as hereinbefore described, so that regular and even work is given the eccentric. In operation a feed box 10 is supported directly at the top of the legs 3? of the table frame, said box having the spouts 20 extending from the bottom thereof and shown as four in number, two over each half of the table. The disintegrated ore with the mineral values all carried by the slime is fed into said boxes 10 from which it flows through the spouts 20 of the concentrating table at the upper end thereof and immediately the agitation of said table by the eccentric shakes the mineral slime down the slant of the table, the tendency being for the slime to pocket in the corner between the settling board and the partition wall on each half of the table, until a little pool of slime is formed, the slime carrying the disintegrated ore and mineral values over on to the settling boards where the end it is prevented from reaching the trough by the guard strips 14 so that the slime again flows into the next section of the table having a settling board, and thus step after step works its way tothe lower end of the table having deposited a proportionate amount of mineral value in each of the compartments, or steps as formed by the settling boards. It will of course be understood that the slant from the center to the side edge of the table is very slight, and part of the slime at each step or settling board will find its way to the side trough, the object of the invention being to distribute the disintegrated ore and mineral value in suspension as evenly over the entire surface of the table as possible, and of course co-incidentally constantly agitate and baffle the same in its course to assist to a maximum degree the precipitation to settle all of the heavier mineral values. 7

It must be further understood that the detail arrangement of the several parts of the invention may be modified or the numher and size of the several parts altered without departing from the spirit of my invention, and I do not wish to be confined to the exact construction as shown in the accompanying drawings.

What I claim as my invention is:

. 1. A concentrating table comprising a frame, a table hung within said frame, laterally extending settling boards secured on said table and having the upper surface thereof corrugated and dividing said table into a plurality of compartments and means for reciprocating said table said boards being tapered both longitudinally and transversely. Y

2. A concentrating table comprising, a frame, a. table hung within said frame and reciprocal therein and inclined toward each side edge thereof, a partition board extending longitudinally up the center of said table, a plurality of wedge shaped settling boards secured on said table and extending from said partition to the outer side edges thereof and horizontally corrugated on their upper surface and tapered to points at their outer extremities and adjustable in relation to the incline of said table, cover pla hung from said table frame and extending over said settling boards and means for reciprocating said table.

3. A concentrating table comprising a frame, a table divided longitudinally into two sections inclined transversely toward each other and also inclined longitudinally, a plurality of transversely extending settling boards mounted on the two sections of the table and. forming a plurality of pockets therewith and means for oscillating the said table.

l. A concentrating table comprising a frame, a table divided longitudinally into two sections provided at the adjacent edges with division walls, the said sections being inclined inwardly toward the said division walls and being also inclined longitudinally and tapering from the top of the table outwardly toward the bottom thereof, transversely extending bars operatively supporting the upper and lower ends of the table, resilient means connecting the bars to the frame and means for oscillating the said table.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

- GEORGE PETRIE SANDIE.

Witnesses:

FANNY SIMPSON, F. A. CLEMENT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D Q. 

